$N$ bullets each of mass $m \,kg$ are fired with a velocity $v\,m{s^{ - 1}}$ at the rate of n bullets per second upon a wall. The reaction offered by the wall to the bullets is given by
$N$ bullets each of mass $m \,kg$ are fired with a velocity $v\,m{s^{ - 1}}$ at the rate of n bullets per second upon a wall. The reaction offered by the wall to the bullets is given by
$nmv$
$\frac{{Nmv}}{n}$
$n\frac{{Nm}}{v}$
$n\frac{{Nv}}{m}$
$N$ bullets each of mass $m \,kg$ are fired with a velocity $v\,m{s^{ - 1}}$ at the rate of n bullets per second upon a wall. The reaction offered by the wall to the bullets is given by
Total mass of bullets $= Nm$, time $t = \frac{N}{n}$
Momentum of the bullets striking the wall $= Nmv$
Rate of change of momentum (Force) = $\frac{{Nmv}}{t} = nmv.$